[Retracted] QoS-Aware Smart Phone-Based User Tracking Application to Prevent Outbreak of COVID-19 in Saudi Arabia

Table 1

Comparison of proposed solution with existing COVID-19 related models using android-based applications.

Name of the application	Android-based user application	Distributed database for real-time learning	Considered QoS matrices	Service providing point of view	Data access procedure (one to one or many to one or many to many)
Sehhaty	Several health-related assistance	✓	✗	Multi service providing	Many source to one person
Mawid	E-Appointment app			Single serviced	Connects many hospitals to one
Tawakkalna	Helps to verify own health condition			Multi serviced	One to one
Tabaud	To track COVID-19 spread	✓	✓	Multi serviced	Many to one
Eshara	User specific, supports sign language	✓		Multi serviced	Many to one
Qareboon	Offers text-based mental counselling			Multi serviced	Many to one
Hemayah (proposed)	Multi-user-based, helps to prevent pandemic outbreak	✓	✓	Multi serviced	Many to many